RC6432J681CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432J681CS is a 680 Ohms ±5% 1W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This component is classified as Active product status with 1,042 pieces currently in stock. The part is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, suitable for applications requiring moisture-resistant thick film resistors across industrial and commercial temperature ranges.

Equivalent and substitute parts are identified based on matching or exceeding the core electrical and mechanical specifications: 680 Ohms resistance value, 2512 package footprint, thick film composition, and operating temperature range of -55°C to 155°C. Substitutes are categorized by tolerance grade, power rating, and automotive qualification status.

Substiute Parts

RC6432J681CS

Samsung Electro-MechanicsIn Stock: 1090RC6432J681CS Datasheet

Current PartRFQ

RC2512JK-07680RL

YAGEOIn Stock: 8448RC2512JK-07680RL Datasheet

DirectRFQ

AC2512FK-07680RL

YAGEOIn Stock: 8608AC2512FK-07680RL Datasheet

UpgradeRFQ

AC2512JK-07680RL

YAGEOIn Stock: 3859AC2512JK-07680RL Datasheet

UpgradeRFQ

RC2512FK-07680RL

YAGEOIn Stock: 7099RC2512FK-07680RL Datasheet

UpgradeRFQ

RHC2512FT680R

Stackpole Electronics IncIn Stock: 20171RHC2512FT680R Datasheet

UpgradeRFQ

CRCW2512680RFKEG

Vishay DaleIn Stock: 15074CRCW2512680RFKEG Datasheet

SimilarRFQ

RMCF2512FT680R

Stackpole Electronics IncIn Stock: 41473RMCF2512FT680R Datasheet

SimilarRFQ

RPC2512JT680R

Stackpole Electronics IncIn Stock: 16784RPC2512JT680R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped into three categories based on electrical parameter alignment with the main part RC6432J681CS:

Direct Equivalents (Identical Electrical Specifications): Parts matching 680 Ohms ±5% 1W with identical tolerance and power rating. These parts maintain full functional equivalence with the original component.

Upgrade Substitutes (Enhanced Tolerance or Power Rating): Parts with improved tolerance (±1% instead of ±5%) or increased power rating (2W instead of 1W), or automotive AEC-Q200 qualification. These parts exceed the original specifications and are suitable for applications requiring tighter tolerance or higher power dissipation capability.

Similar Substitutes (Comparable Specifications with Variations): Parts with different power ratings (1.5W or 2W) or automotive qualification that maintain the 680 Ohms resistance and 2512 package but may have different tolerance grades. These parts are functionally compatible within the specified operating parameters.

The critical parameters determining substitution eligibility are: resistance value (680 Ohms), package footprint (2512), composition (thick film), operating temperature range (-55°C to 155°C), and moisture resistance capability.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required): RC2512JK-07680RL (YAGEO) provides direct electrical and mechanical equivalence to RC6432J681CS with identical 680 Ohms ±5% 1W specifications and 2512 package. Both parts are ROHS3 compliant with MSL 1 rating and -55°C to 155°C operating range. This part is suitable for applications where the original specification must be maintained without modification.

For Improved Tolerance Applications: AC2512FK-07680RL (YAGEO) or RC2512FK-07680RL (YAGEO) offer ±1% tolerance upgrade while maintaining 1W power rating and 2512 package. These parts are appropriate for circuits requiring tighter resistance tolerance than the original ±5% specification. AC2512FK-07680RL includes automotive AEC-Q200 qualification for automotive-grade applications.

For Automotive Applications: AC2512JK-07680RL (YAGEO), CRCW2512680RFKEG (Vishay Dale), and RMCF2512FT680R (Stackpole Electronics Inc) all carry AEC-Q200 automotive qualification. AC2512JK-07680RL maintains the original ±5% tolerance, while CRCW2512680RFKEG and RMCF2512FT680R provide ±1% tolerance upgrade. These parts are suitable for automotive and industrial applications requiring automotive-grade component qualification.

For Higher Power Dissipation: RHC2512FT680R (Stackpole Electronics Inc) provides 2W power rating with ±1% tolerance in the 2512 package. This part is suitable for applications where the original 1W rating is insufficient and higher power dissipation capability is required.

For Pulse-Withstanding Applications: RPC2512JT680R (Stackpole Electronics Inc) offers 1.5W power rating with pulse-withstanding capability and AEC-Q200 automotive qualification. This part is suitable for circuits subject to transient pulse conditions while maintaining ±5% tolerance matching the original specification.

All substitute parts maintain ROHS3 compliance, MSL 1 moisture sensitivity rating, and -55°C to 155°C operating temperature range consistent with the original RC6432J681CS component.

Frequently Asked Questions (FAQ)

Q: Can RC2512JK-07680RL be used as a direct replacement for RC6432J681CS?

A: Yes. RC2512JK-07680RL is a direct equivalent with identical electrical specifications (680 Ohms ±5% 1W), same 2512 package footprint, thick film composition, and operating temperature range (-55°C to 155°C). Both parts are ROHS3 compliant with MSL 1 rating. No circuit design changes are required.

Q: What is the difference between ±5% and ±1% tolerance parts?

A: Tolerance specifies the maximum deviation from the nominal 680 Ohm resistance value. ±5% tolerance allows resistance between 646 Ohms and 714 Ohms. ±1% tolerance allows resistance between 673 Ohms and 687 Ohms. Applications requiring tighter resistance accuracy should use ±1% tolerance parts such as AC2512FK-07680RL or RC2512FK-07680RL.

Q: Are automotive AEC-Q200 qualified parts compatible with non-automotive applications?

A: Yes. Automotive AEC-Q200 qualified parts such as AC2512JK-07680RL, CRCW2512680RFKEG, and RMCF2512FT680R meet or exceed the electrical and reliability requirements of non-automotive applications. These parts are suitable for any application where the original RC6432J681CS would be used.

Q: What is the significance of the 2512 package designation?

A: The 2512 package (6432 Metric) is a surface-mount chip resistor with dimensions 0.248" to 0.250" length and 0.122" to 0.126" width. All substitute parts listed use the same 2512 package footprint, ensuring mechanical compatibility with existing PCB layouts and assembly equipment.

Q: Can a 2W rated resistor replace a 1W rated resistor?

A: Yes. RHC2512FT680R with 2W power rating can replace RC6432J681CS with 1W rating. The higher power rating provides additional thermal margin and is suitable for applications where the original 1W rating is insufficient. The component will occupy the same PCB footprint and maintain electrical equivalence at the 680 Ohm resistance value.

Q: What does "pulse withstanding" mean in RPC2512JT680R?

A: Pulse withstanding capability indicates the part is designed to tolerate transient overvoltage or overcurrent pulses without degradation. RPC2512JT680R with 1.5W power rating and pulse-withstanding feature is suitable for circuits subject to temporary voltage spikes or current surges while maintaining the ±5% tolerance and 680 Ohm resistance of the original part.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (RC2512JK-07680RL, AC2512FK-07680RL, AC2512JK-07680RL, RC2512FK-07680RL, RHC2512FT680R, CRCW2512680RFKEG, RMCF2512FT680R, and RPC2512JT680R) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental compliance of the original RC6432J681CS.

Q: What is the temperature coefficient specification?

A: Temperature coefficient ±100ppm/°C indicates the resistance change per degree Celsius across the operating temperature range. All listed parts maintain ±100ppm/°C temperature coefficient, ensuring consistent resistance stability across the -55°C to 155°C operating range.